CN106082224B - A kind of system and method for double shaft furnace production calcium carbides that pyrolysis gas recycles - Google Patents
A kind of system and method for double shaft furnace production calcium carbides that pyrolysis gas recycles Download PDFInfo
- Publication number
- CN106082224B CN106082224B CN201610638726.7A CN201610638726A CN106082224B CN 106082224 B CN106082224 B CN 106082224B CN 201610638726 A CN201610638726 A CN 201610638726A CN 106082224 B CN106082224 B CN 106082224B
- Authority
- CN
- China
- Prior art keywords
- high temperature
- oxygen
- lime kiln
- baffle
- temperature pyrolysis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 164
- 238000000034 method Methods 0.000 title claims abstract description 80
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 229910052791 calcium Inorganic materials 0.000 title claims abstract description 15
- 239000011575 calcium Substances 0.000 title claims abstract description 15
- -1 calcium carbides Chemical class 0.000 title claims abstract description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 147
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 147
- 239000004571 lime Substances 0.000 claims abstract description 147
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 123
- 239000001301 oxygen Substances 0.000 claims abstract description 123
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 108
- 239000005997 Calcium carbide Substances 0.000 claims abstract description 101
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 claims abstract description 99
- 239000007789 gas Substances 0.000 claims abstract description 62
- 239000002817 coal dust Substances 0.000 claims abstract description 45
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 39
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 37
- 239000000428 dust Substances 0.000 claims abstract description 36
- 239000003245 coal Substances 0.000 claims abstract description 33
- 239000000779 smoke Substances 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003345 natural gas Substances 0.000 claims abstract description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 28
- 239000003546 flue gas Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 25
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 24
- 239000000292 calcium oxide Substances 0.000 claims description 12
- 235000012255 calcium oxide Nutrition 0.000 claims description 12
- 238000007664 blowing Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 27
- 239000000843 powder Substances 0.000 description 25
- 235000019738 Limestone Nutrition 0.000 description 11
- 239000006028 limestone Substances 0.000 description 11
- 239000002893 slag Substances 0.000 description 11
- 239000004575 stone Substances 0.000 description 11
- 239000000571 coke Substances 0.000 description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 7
- 238000010891 electric arc Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000005979 thermal decomposition reaction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 235000013312 flour Nutrition 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 210000000038 chest Anatomy 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910014813 CaC2 Inorganic materials 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical class CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
A kind of system and method for the double shaft furnace production calcium carbides recycled the present invention relates to pyrolysis gas.The system comprises Lime kiln, high temperature pyrolysis stove, the hot method furnace of calcium carbide of oxygen and oxygen coal gun and natural gas oxygen lance, Lime kiln includes agstone feeding mouth, lime feed opening, Lime kiln smoke inlet, and the baffle of adjustable inclination is equipped with the burner hearth of Lime kiln；High temperature pyrolysis stove includes coal dust feeding mouth, carbon dust feed opening, high temperature pyrolysis stove smoke inlet, and the baffle of adjustable inclination is equipped with the burner hearth of high temperature pyrolysis stove；The hot method furnace of calcium carbide of oxygen includes lime feeding mouth, carbon dust feeding mouth, exhanst gas outlet and discharge port；The lance head of oxygen coal gun and natural gas oxygen lance is arranged in the hot method furnace of calcium carbide of oxygen.The system and method for double shaft furnace production calcium carbides that the pyrolysis gas of the present invention recycles, by the baffle that adjustable inclination is respectively provided with double shaft furnaces, it is convenient to control reaction and pyrolysis time of the raw material in stove, ensure the degree and efficiency of raw material reaction.
Description
Technical field
Present invention relates generally to the production system and method for a kind of calcium carbide, and in particular to a kind of pyrolysis gas recycles double
The system and method for shaft furnace production calcium carbide.
Background technology
Calcium carbide is commonly called as calcium carbide, is reacted and is made by coke and calcium oxide, is that important coalification chemical product and basic chemical industry are former
Material, is mainly for the production of acetylene and ethynylation chemical product, including vinyl chloride serial, vinyl acetate series and acrylic etc.
Row product.Calcium carbide has a very important role Chinese national economy development, and calcium carbide yield is continuously increased nearly ten years.
Although the existing history for many years of development of calcium carbide industry, the production technology of current calcium carbide still mainly uses electric arc
The method of heating, i.e., produce high temperature by electric arc furnaces and produce electricity stone to provide heat next life.It is to utilize electrical energy production using electric arc furnaces
Calcium carbide.Its specific production process is to be added mixture into by the entrance or pipeline of electric furnace upper end in electric furnace, raw material open or
2200 DEG C or so are heated in closed electric furnace, at high temperature reaction generation calcium carbide (calcium carbide).The calcium carbide melted, from discharging
Mouth discharge, cools down into calcium carbide pot.Calcium carbide is used as finished product packing after cooling down and crushing.The carbon monoxide generated in reaction is then according to electricity
The type of stone stove is discharged by different way.The shortcomings that technology is：Block coke and lime by the use of high price is needed to be used as raw material；
Generated heat using electric energy, power consumption is high, and energy consumption cost is high；Since electric arc almost utilizes effect in the center of electric arc furnaces, unit heat size
Rate is limited, low output；The high-temperature flue gas of generation is fewer due to measuring, and calcium carbide per ton about produces 400m3, associated thermal energy is difficult to back
Receive.
The method of the hot method production calcium carbide of oxygen is to be preheated to block calcic raw material and carbon raw material in epimere shaft furnace at present
After 800-1300 DEG C, then feed them into hypomere electric arc furnaces.It is compound with electrode by oxygen and breeze blowing burning in electric arc furnaces
Heat supply makes temperature rise to 1700-2200 DEG C, carbide raw material reaction generation high-grade calcium carbide.The calcium carbide furnace gas of generation is through dust separation
Afterwards by gas turbine combustion to drive electrical power generators, exhaust gas sensible heat is recycled by waste heat boiler.The shortcomings that technology is:Need profit
Raw material is used as by the use of the block coke and lime of high price.The main problem of the hot method of present oxygen is not solved existing for block material reaction
Problem, i.e., since block stock specific surface area is small so that raw material need to could be completed to react in higher temperature, thus cause system
Energy consumption is high.The raw materials for production of the hot method of oxygen remain as the higher block coke and lime stone of price at present, without effectively
Reduce cost of material.
Therefore, in order to directly using agstone and low order coal dust the production calcium carbide of low cost, and raw material can be controlled
Conveying speed and residence time, ensure the reaction effect of raw material, it is necessary to propose production system and the side of a kind of new calcium carbide
Method.
The content of the invention
A kind of system and method for the double shaft furnace production calcium carbides recycled it is an object of the invention to provide pyrolysis gas, makes
Obtaining the technique can directly utilize the powders such as agstone, coal dust to complete reaction in stove, and can control the conveying speed of raw material
And the residence time, to ensure the reaction effect of raw material.
A kind of system of the double shaft furnace production calcium carbides recycled the present invention provides pyrolysis gas, the system comprises lime
The hot method furnace of calcium carbide of shaft furnace, high temperature pyrolysis stove, oxygen, oxygen coal gun and natural gas-oxygen lance, wherein, the Lime kiln includes stone
Limestone flour feeding mouth, lime feed opening, Lime kiln smoke inlet, the agstone feeding mouth are arranged on the Lime kiln
Top, the lime feed opening and Lime kiln smoke inlet are arranged on the lower part of the Lime kiln；The stove of the Lime kiln
It is equipped with the Lime kiln baffle of adjustable inclination in thorax, the Lime kiln baffle is arranged under the agstone feeding mouth,
On the lime feed opening and the Lime kiln smoke inlet；The inner wall of the Lime kiln baffle and the Lime kiln
Gap is left, aperture is disposed with the Lime kiln baffle；The Lime kiln baffle is by through the Lime kiln furnace wall
Rotating shaft support on the Lime kiln；The high temperature pyrolysis stove includes coal dust feeding mouth, carbon dust feed opening, high temperature pyrolysis stove
Smoke inlet and pyrolysis gas outlet, the coal dust feeding mouth and the pyrolysis gas outlet are arranged on the top of the high temperature pyrolysis stove,
The carbon dust feed opening and high temperature pyrolysis stove smoke inlet are arranged on the lower part of the high temperature pyrolysis stove；The stove of the high temperature pyrolysis stove
The high temperature pyrolysis stove baffle of adjustable inclination is equipped with thorax, the high temperature pyrolysis stove baffle is arranged on the coal dust feeding mouth and pyrolysis
Under gas outlet, on the carbon dust feed opening and the high temperature pyrolysis stove smoke inlet；The high temperature pyrolysis stove baffle and institute
The inner wall for stating high temperature pyrolysis stove leaves gap, and aperture is disposed with the high temperature pyrolysis stove baffle；The high temperature pyrolysis stove baffle
By the rotating shaft support through the high temperature pyrolysis stove furnace wall in the high temperature pyrolysis stove；The hot method furnace of calcium carbide of oxygen includes lime
Feeding mouth, carbon dust feeding mouth, exhanst gas outlet and discharge port, the lime feeding mouth connect the lime blanking of the Lime kiln
Mouthful, the carbon dust feeding mouth connects the carbon dust feed opening of the high temperature pyrolysis stove, and the exhanst gas outlet connects the Lime kiln
Smoke inlet and the high temperature pyrolysis stove smoke inlet；The lance head of the oxygen coal gun is arranged in the hot method furnace of calcium carbide of the oxygen, institute
The furnace roof for stating oxygen coal gun from the hot method furnace of calcium carbide of the oxygen is stretched into the hot method furnace of calcium carbide of the oxygen；Natural gas-the oxygen lance
Lance head is arranged in the hot method furnace of calcium carbide of the oxygen, and the furnace roof of the natural gas-oxygen lance from the hot method furnace of calcium carbide of the oxygen stretches into
In the hot method furnace of calcium carbide of oxygen；The natural gas line of the natural gas-oxygen lance passes through pressue device and the high temperature pyrolysis
The pyrolysis gas outlet of stove is connected.
Above-mentioned system, is equipped with multiple lime with the inclination angle in the burner hearth of the Lime kiln successively from top to bottom
Shaft furnace baffle, the vertical centerline of the relatively described Lime kiln in inclination angle of the adjacent Lime kiln baffle are arranged symmetrically；It is described
It is equipped with multiple high temperature pyrolysis stove baffles with the inclination angle, the adjacent height in the burner hearth of high temperature pyrolysis stove successively from top to bottom
The vertical centerline of the relatively described high temperature pyrolysis stove in inclination angle of warm solution fender plate is arranged symmetrically.
Above-mentioned system, the angle of the Lime kiln baffle and the high temperature pyrolysis stove baffle with horizontal plane adjust
For 30 ° -60 °；Hole diameter on the Lime kiln baffle and the high temperature pyrolysis stove baffle is 10mm-30mm.
Above-mentioned system, the Lime kiln and the high temperature pyrolysis stove are block furnace, the Lime kiln baffle and
0.5-0.95 of the high temperature pyrolysis stove baffle along the length on the incline direction at respective inclination angle for each length of side of place stove
Again, the distance of vertical direction of the rotation axis of the adjacent Lime kiln baffle in the Lime kiln is the Lime kiln side
Long 0.2-1.5 times；The distance of vertical direction of the rotation axis of the adjacent high temperature pyrolysis stove baffle in the high temperature pyrolysis stove
For 0.2-1.5 times of the high temperature pyrolysis stove length of side.
The material of above-mentioned system, the Lime kiln baffle and the high temperature pyrolysis stove baffle is heat-resistance stainless steel；
The junction of the Lime kiln baffle and the high temperature pyrolysis stove baffle and each place stove is equipped with sealing device；The stone
Rotation driving bar is equipped with the shaft of the shaft of grey shaft furnace and the high temperature pyrolysis stove.
Above-mentioned system, the exhanst gas outlet of the hot method furnace of calcium carbide of oxygen are respectively communicated with the lime by high-temperature flue gas pipeline
High-temperature flue gas pipeline described in shaft furnace gas inlet and the high temperature pyrolysis stove gas inlet is internally provided with water-cooled flue.
Above-mentioned system, the discharge port of the hot method furnace of calcium carbide of oxygen are equipped with radar level gauge or capacitance material level meter；The stone
The agstone feeding mouth of grey shaft furnace is connected with agstone speed governing batcher, and the coal dust feeding mouth of the high temperature pyrolysis stove is connected with coal
Powder speed governing batcher.
Above-mentioned system, the structure of the oxygen coal gun are telescopic water cooled lance, the material of the lance head of the oxygen coal gun
For copper, the sleeve internal layer of the oxygen coal gun is breeze blowing layer, and intermediate layer is blowing oxygen layer, and outermost is cooling circulating water
Layer；The oxygen inlet of the blowing oxygen layer is connected with oxygen channel, and the coal dust import of the breeze blowing layer is connected with coal dust
Pipeline.
The present invention provides it is a kind of using said system carry out calcium carbide production method, the method includes the steps：By stone
Limestone flour is sent into the Lime kiln and is reacted, and obtains quick lime；Coal dust is sent into the high temperature pyrolysis stove to be pyrolyzed, is obtained
To carbon dust；The quick lime and carbon dust are sent into the hot method furnace of calcium carbide of oxygen, the oxygen coal gun is divided stove injection coal to described melt
Powder and oxygen, make the natural gas-oxygen lance to the hot method furnace of calcium carbide Natural GasInjecting of the oxygen and oxygen, the hot method generation electricity of oxygen
Stone；The high-temperature flue gas that the hot method furnace of calcium carbide of the oxygen produces is each led into the Lime kiln and the high temperature pyrolysis stove；By institute
State the pyrolysis gas produced in high temperature pyrolysis stove it is pressurized after be passed through in the natural gas line of the natural gas-oxygen lance.
Above-mentioned method, the method further include step：By speed governing batcher governing speed to control the lime stone
The feeding amount of powder and coal dust；Combustible gas or oil are extracted from the pyrolysis smoke of the high temperature pyrolysis stove；By adjusting the lime
The inclination angle of shaft furnace baffle and the high temperature pyrolysis stove baffle is to control the gliding speed of agstone and coal dust；By described in adjusting
Residence time of the agstone in the Lime kiln is to control the extent of reaction of the agstone；By controlling high temperature cigarette
Water in feed channel is to control the temperature that flue gas enters in the reduction shaft furnace；Pass through the discharging in the hot method furnace of calcium carbide of the oxygen
The delivery rate of the agstone and coal dust is further controlled to adjust the feeding of agstone and coal dust after mouthful detection material position
Amount, to prevent the lime feed opening from being blocked with carbon dust feed opening.
The beneficial effects of the present invention are this technology utilization lime stone and coal dust production calcium carbide, considerably reduce former material
The cost of material.
It can easily control raw material anti-in stove in two shaft furnaces of Lime kiln and high temperature pyrolysis stove of the present invention
Should or pyrolysis time, it is ensured that raw material react or pyrolysis degree and efficiency.
The present invention solves the problems, such as the powder in calcium carbide production using foamed slag, and calcium carbide is produced using powder, reduces anti-
Temperature is answered, reduces energy consumption.
The natural gas that pyrolysis produces is sent into the hot method furnace of calcium carbide of oxygen and burnt by the present invention after pressurized circulation, is provided for reaction
Heat.
In addition, combustible gas or oil can be also extracted from pyrolysis smoke to produce new benefit.
Brief description of the drawings
Fig. 1 is the system structure schematic diagram of the embodiment of the present invention；
Fig. 2 is the adjustable pyrolysis oven interior panelling front view structural representation of the embodiment of the present invention；And
Fig. 3 is the A of adjustable pyrolysis oven interior panelling in Fig. 2 to structure diagram.
Embodiment
Below in conjunction with drawings and examples, the embodiment of the present invention is explained in more detail, so as to energy
The advantages of enough more fully understanding the solution of the present invention and its various aspects.However, specific embodiments described below and reality
Example is applied to be for illustrative purposes only, rather than limitation of the present invention.
The embodiment of the present invention is described in further detail below in conjunction with attached drawing 1.The pyrolysis gas of the present embodiment follows
The system for double shaft furnace production calcium carbides that ring utilizes includes:1st, agstone hopper；2nd, speed governing batcher；3rd, exhaust outlet；4th, lime
Shaft furnace；5th, Lime kiln baffle；6th, high-temperature flue gas pipeline；7th, pulverized coal channel；8th, oxygen channel；9th, oxygen coal gun；10th, the hot method electricity of oxygen
Stone stove；11st, furnace of calcium carbide discharge port；12nd, natural gas-oxygen lance；13rd, oxygen channel；14th, natural gas line；15th, pressurization dress
Put；16th, high-temperature flue gas pipeline；17th, high temperature pyrolysis stove baffle；18th, high temperature pyrolysis stove；19th, exhaust outlet；20th, speed governing batcher；
21st, coal dust hopper.Wherein, agstone hopper 1, coal dust hopper 21, speed governing batcher 2 and 20 etc. can be set according to being actually needed
Or it is changed to other devices.
Two adjustable shaft furnaces are equipped with the present invention, one is reacted generation lime at high temperature for lime stone, is referred to as
For Lime kiln, another is used for jet coal high temperature pyrolysis, is referred to as high temperature pyrolysis stove, two shaft furnace structures are similar, and function is not
Together.
The Lime kiln 4 includes agstone feeding mouth, lime feed opening, Lime kiln smoke inlet, the lime
Mountain flour feeding mouth is arranged on the top of the Lime kiln 4, and the lime feed opening and Lime kiln smoke inlet are arranged on the stone
The lower part of grey shaft furnace 4；The Lime kiln baffle 5 of adjustable inclination, the Lime kiln are equipped with the burner hearth of the Lime kiln 4
Baffle 5 is arranged under the agstone feeding mouth, on the lime feed opening and the Lime kiln smoke inlet；It is described
Lime kiln baffle 5 and the inner wall of the Lime kiln 4 leave gap, and aperture is disposed with the Lime kiln baffle 5；It is described
Lime kiln baffle 5 is supported on the Lime kiln 4 by the shaft 51 through 4 furnace wall of Lime kiln.
The high temperature pyrolysis stove 18 includes coal dust feeding mouth, carbon dust feed opening, high temperature pyrolysis stove smoke inlet, the coal dust
Feeding mouth is arranged on the top of the high temperature pyrolysis stove, and the carbon dust feed opening and high temperature pyrolysis stove smoke inlet are arranged on the high temperature
The lower part of pyrolysis oven.The high temperature pyrolysis stove baffle 17 of adjustable inclination, the height are equipped with the burner hearth of the high temperature pyrolysis stove 18
Warm solution fender plate 17 is arranged under the coal dust feeding mouth, the carbon dust feed opening and the high temperature pyrolysis stove smoke inlet it
On.The high temperature pyrolysis stove baffle 17 and the inner wall of the high temperature pyrolysis stove 18 leave gap, the high temperature pyrolysis stove baffle 17
On be disposed with aperture.The high temperature pyrolysis stove baffle 17 is by the rotating shaft support through 18 furnace wall of high temperature pyrolysis stove in the height
On warm pyrolysis oven 18.
Baffle arrangement in high temperature pyrolysis stove 18 is identical with the baffle arrangement in Lime kiln 4.
The hot method furnace of calcium carbide 10 of oxygen includes lime feeding mouth, carbon dust feeding mouth, exhanst gas outlet and discharge port.The lime
Feeding mouth connects the lime feed opening of the Lime kiln 4, and the carbon dust feeding mouth connects the carbon dust of the high temperature pyrolysis stove 18
Feed opening, the exhanst gas outlet connect the Lime kiln smoke inlet and the high temperature pyrolysis stove smoke inlet.
The lance head of the oxygen coal gun 9 is arranged in the hot method furnace of calcium carbide 10 of the oxygen, and the oxygen coal gun 9 is electric from the hot method of the oxygen
The furnace roof of stone stove 10 is stretched into the hot method furnace of calcium carbide 10 of the oxygen.
The lance head of the natural gas-oxygen lance 12 is also arranged in the hot method furnace of calcium carbide 10 of the oxygen, the natural gas-oxygen
The furnace roof of gas spray gun 12 from the hot method furnace of calcium carbide 10 of the oxygen is stretched into the hot method furnace of calcium carbide 10 of the oxygen；The natural gas-oxygen spray
The natural gas line 14 of rifle 12 is connected by pressue device 15 with the pyrolysis gas outlet of the high temperature pyrolysis stove 10.
Above-mentioned system, is equipped with multiple stones with the inclination angle in the burner hearth of the Lime kiln 4 successively from top to bottom
Grey shaft furnace baffle 5, the vertical centerline of the relatively described Lime kiln in inclination angle of the adjacent Lime kiln baffle are arranged symmetrically.Together
Sample, it is equipped with multiple high temperature pyrolysis stove baffles with the inclination angle in the burner hearth of the high temperature pyrolysis stove 18 successively from top to bottom
17, the vertical centerline of the relatively described high temperature pyrolysis stove 18 in inclination angle of the adjacent high temperature pyrolysis stove baffle 17 is arranged symmetrically.
In hopper the coal dust of the agstone of 0-1mm and 0-2mm respectively by under closed speed governing batcher under respectively
Inside to corresponding shaft furnace, two shaft furnaces are arranged symmetrically.Speed governing batcher may be designed as spiral speed regulation batcher, be fed
While ensure sealing between shaft furnace and raw material hopper.
The delivery rate of batcher is controlled according to the reaction speed in the hot method furnace of calcium carbide 10 of oxygen, and reaction speed is very fast, feed
Speed increase, it is on the contrary then reduce.
The ratio of agstone and coal dust is controlled according to the constituent adjustment of product, if CaO content is high in calcium carbide, is increased
Add the ratio of carbon, it is on the contrary then reduce.
For raw material by baffle slide downward in shaft furnace, the angle by adjusting respective baffle controls the speed of different downslides
And the reaction time.The speed of the decline of agstone and coal dust can be respectively by Lime kiln baffle 5 and high temperature pyrolysis stove baffle 17
Angle control.Baffle angle is big, and material decrease speed is fast, and the residence time in stove is short；Baffle angle is small, reduction of speed under material
Degree is slow, the residence time length in stove.The foundation of adjusting can be depending on the outlet temperature of the hot method furnace of calcium carbide 10 of oxygen, general outlet
Temperature is between 1500 DEG C -1100 DEG C.Outlet temperature is high, and the residence time is short, and the on the contrary then residence time is grown.
The design principle of baffle 5 or 17 is the most long principle in material path, while guarantee pair can be each in the shaft furnace of place again
Flue gas resistance cannot be too big.
According to above principle, while according to the friction coefficient of baffle 5 or 17 and raw material powder, for the shaft furnace of square, if
Baffle 5 or 17 is counted along 0.5-0.95 times that the length on the incline direction at its inclination angle is the shaft furnace length of side, is preferably 0.75 times or so.
Difference in height between the rotation axis of adjacent screen is 0.2-1.5 times of the pyrolysis oven length of side, is preferably 0.5 times or so.Baffle 5 or 17
It is determined as 30 ° -60 ° with the adjustable range of the angle of horizontal plane.Shown in the structure and size as Fig. 2 and Fig. 3 of instantiation (in figure
The structure diagram of Lime kiln baffle 5 is only provided, the structure of high temperature pyrolysis stove baffle 17 is identical with Lime kiln baffle 5).Figure
In concrete structure and size be exemplary illustration.Certain shaft furnace can also be other shape such as circle.When shaft furnace is other shape
During shape, and cannot be too big to the flue gas resistance in shaft furnace according to the most long principle in material path and consideration, to design the knot of baffle
Structure and arrangement form.
For example, when the angle of baffle 5 or 17 and horizontal plane is 36 °, the total distance of stream is 2.1 times of left sides of shaft furnace height
It is right.Due to frictional force and the influence of collision, material falls becomes the reciprocal downglide motion of low speed by the movement of falling object, with whole process
Compared for the situation (being not provided with baffle) of free-falling, raw material powder fall time is 5-12 times of free-fall time.Have above
Body parameter can make the appropriate adjustments according to the particle size range of the wind speed in pyrolysis oven and raw material powder.Baffle 5 with 17 material to be heat-resisting
Stainless steel.Baffle arrangement has the aperture of diameter 10mm-30mm, and high-temperature gas is by flowing through aperture and shaft furnace and baffle below shaft furnace
Gap between 5 or 17 flows up, to ensure contact of the raw material powder with high-temperature gas.
As shown in Fig. 2, Lime kiln baffle 5 has the shaft 51 that can make baffle activity and the sealing dress between shaft furnace
Put.Reinforcing rib 52 can be set on baffle 5 to ensure the intensity of baffle 5 and rigidity.The rotation of baffle 5 can hand-turning also machine
Drive, rotation driving bar 53 can be designed with baffle 5.Certainly, high temperature pyrolysis stove baffle 17 can be also so designed that.
High-temperature gas reverse flow in raw material powder and shaft furnace.Agstone react under the high temperature conditions generation CaO and
CO2, coal dust occurs pyrolytic reaction, generates coke and pyrolysis gas at high temperature.The gas of generation is discharged with high-temperature flue gas, i.e. CO2With
High-temperature flue gas enters back into post-processing system after the discharge of exhaust outlet 3.The partial thermal decomposition gas of generation discharged with high-temperature flue gas after from
Exhaust outlet 19 enters back into post-processing system after discharging.The pyrogenic steam that the pyrolysis of partial thermal decomposition gas produces can by condensation, purification
Obtain oil, the gas product of high-quality.
From the partial thermal decomposition gas that high temperature pyrolysis stove comes out by entering oxygen-day by pipeline 14 after the pressurization of pressue device 15
Right gas spray gun 12, while oxygen also enters oxygen-natural gas spraying gun 12 by oxygen channel 12, burns in furnace of calcium carbide, coordinates
Oxygen coal gun provides heat for furnace of calcium carbide jointly.
Oxygen coal gun structure is telescopic water cooled lance, wherein, middle coal injection, outside injecting oxygen, then outside is cold
But recirculated water, oxygen coal gun head material are copper lance head.
The CaO and carbon dust of generation enter reaction generation calcium carbide in the follow-up hot method furnace of calcium carbide 10 of oxygen.
Raw material powder from shaft furnace top to lower part during falling, progressively fractional order reaction, by adjusting in shaft furnace
Residence time is to control the extent of reaction.The extent of reaction at spout of shaft furnace can reach 95% or so.
By setting under the sensing of the facility such as radar level gauge or capacitance material level meter at the discharge port 11 of the hot method furnace of calcium carbide 10 of oxygen
Material situation, prevents feed opening from blocking.If it find that feed opening gathers materials too much, blanking is reduced by controlling the delivery rate on top
Amount, prevents from blocking.
In the hot method furnace of calcium carbide 10 of oxygen, coke and calcium lime powder enter the hot method furnace of calcium carbide of oxygen.Carbon particle is main and CaO reacts
Generate calcium carbide.Remaining fraction carbon dust burns in stove provides heat.The heat that burning produces promotes pulverized limestone and carbon dust anti-
Calcium carbide should be generated.Form foamed slag on surface at the same time, pulverized limestone and carbon dust caught using foamed slag, react in foamed slag into
OK.The calcium carbide of generation is discharged by 11 discontinuity of discharge port after having reacted.Calcium carbide by being discharged in calcium carbide pot again after discharge port
Cooling.
The exhanst gas outlet of the hot method furnace of calcium carbide 10 of oxygen is respectively communicated with the Lime kiln by high-temperature flue gas pipeline 6 and 16
Gas inlet and the high temperature pyrolysis stove gas inlet.The high-temperature flue gas pipeline 6 and 16 is internally provided with water-cooled flue.Oxygen heat
The high-temperature flue gas that method furnace of calcium carbide 10 produces enters shaft furnace by the water-cooled flue in high-temperature flue gas pipeline 6,16.Can be each by adjusting
Enter the gas temperature of shaft furnace from the temperature control of water-cooled flue.
The present invention can utilize agstone and coal dust production calcium carbide, considerably reduce the cost of raw material.The present invention
Lime kiln and two shaft furnaces of high temperature pyrolysis stove in can easily control reaction or pyrolysis time of the raw material in stove, can
To ensure the degree and efficiency of raw material reaction or pyrolysis.The present invention solves the problems, such as the powder in calcium carbide production using foamed slag,
Calcium carbide is produced using powder, reaction temperature is reduced, reduces energy consumption.The present invention follows the natural gas that pyrolysis produces through being overpressurized
The hot method furnace of calcium carbide burning of oxygen is sent into after ring, heat is provided for reaction.
In addition, combustible gas or oil can be also extracted from pyrolysis smoke to produce new benefit.
Embodiment
Agstone is first placed into hopper 1, and lime is sent into speed according to a certain percentage by the speed governing batcher 2 of lower part
Shaft furnace 4.Limestone powder glides in shaft furnace 4 along Lime kiln baffle 5, while is reacted under conditions of high-temperature flue gas, leads to
Spend decrease speed and the reaction time of the angle control pulverized limestone of regulating fender.Agstone reacts generation under the high temperature conditions
CaO and CO2, CO2Enter next procedure from the exclusion of exhaust outlet 3 with high-temperature flue gas.Calcium lime powder enters furnace of calcium carbide 10 by feed opening
Participate in reaction.
Coal dust is put into hopper 21, by the speed governing batcher 20 of lower part, is sent into high temperature pyrolysis with speed according to a certain percentage
Stove 18.Coal dust powder glides in high temperature pyrolysis stove 18 along high temperature pyrolysis stove baffle 17, while under conditions of high-temperature flue gas
Generation pyrolytic reaction.By adjusting the angle of high temperature pyrolysis stove baffle 17 to control the decrease speed of coal dust and reaction time.Coal
Pyrolytic reaction generation coke and pyrolysis gas occur at high temperature for powder.The gas of generation is discharged from exhaust outlet 19 with high-temperature flue gas and discharged
Enter post-processing system afterwards, the carbon dust of generation is reacted into the hot method furnace of calcium carbide 10 of oxygen.
Oxygen and coal dust are entered in the hot method furnace of calcium carbide 10 of oxygen by oxygen channel 7 and pulverized coal channel 8 by oxygen coal gun 9 respectively
Burning.Under the high temperature conditions, lime and carbon dust reaction generation calcium carbide, while foamed slag is formed on surface, utilize bubble in furnace of calcium carbide
Foam slag catches calcium lime powder and coke powder, is allowed to react in foamed slag.After having reacted, intermittently discharged by discharge port 11.Reaction
The high-temperature flue gas of generation enters Lime kiln 4 and high temperature pyrolysis stove by the water-cooled flue in high temperature pyrolysis pipeline 6 and 16 respectively
18.Its exit gas temperature can be controlled within the specific limits by the water for adjusting water-cooled flue.
From the partial thermal decomposition gas that pyrolysis oven comes out by entering oxygen-natural gas by pipeline 14 after the pressurization of pressue device 15
Spray gun 12, while oxygen also enters oxygen-natural gas spraying gun 12 by oxygen channel 12, burns in furnace of calcium carbide, coordinates oxygen coal
Rifle provides heat for furnace of calcium carbide jointly.
It is specifically described step by step below.
Agstone is put into hopper 1 first.Limestone granularity scope is 0-1mm.Generated after shaft furnace pyroreaction
Calcium lime powder, calcium lime powder component such as following table：
Table 1
| Title | CaO% | MgO% | Activity degree ml |
| Active lime | ≥90 | ≤0.7 | ≥300 |
Coal dust is put into hopper 21, coal powder size 0-2mm, the component such as following table of coal dust：
Table 2
Coal dust is pyrolyzed under the hot environment of shaft furnace, generates coke and pyrolysis gas, coke component such as following table：
Table 3
| Composition, % | Mad | Aad | Vad | FCad |
| Carbon dust | 0.50 | 7.55 | 5.08 | 86.87 |
Coke and calcium lime powder are reacted into the hot method furnace of calcium carbide 10 of oxygen, and part carbon dust burns in stove.Control in stove
Temperature is between 2000 DEG C -2200 DEG C.Foamed slag is formed at furnace of calcium carbide top, catches calcium lime powder and carbon dust using foamed slag, instead
It should be carried out in foamed slag.The calcium carbide of formation is discharged in calcium carbide pot by discharge port 11 and cooled down.Calcium carbide component such as following table：
Table 4
| Composition | CaC2 | CaO | SiO2 | MgO | Fe2O3+Al2O3 | C |
| Content % | 85.3 | 9.5 | 2.1 | 0.35 | 1.45 | 1.2 |
For the hot method flue gas coming from carbide furnace outlet temperature control of oxygen at 1500 DEG C or so, spout of shaft furnace temperature is 800 DEG C or so.
The pyrolysis gas that high temperature pyrolysis stove 18 exports reenters the hot burning of method furnace of calcium carbide 10 of oxygen by circulator and provides instead
In requisition for partial heat.
Pyrolysis gas component such as following table：Table 5
| Component | H2 | CH4 | CO | CO2 | O2 | N2 | CnHm |
| Ratio (V%) | 36 | 37 | 9 | 9 | 1 | 2 | 6 |
Wherein, the M in table 3adRepresent air-dried moisture；AadRepresent dry base ash content；VadAir-dried basis is represented to wave
Hair point；FCadRepresent air-dried basis fixed carbon.
As seen from the above-described embodiment, agstone and coal dust effectively can be generated calcium carbide by technical scheme.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the field, can also do on the basis of the above description
Go out other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn
Among the obvious changes or variations that Shen goes out is still in protection scope of the present invention.
Claims (10)
1. a kind of system for double shaft furnace production calcium carbides that pyrolysis gas recycles, the system comprises Lime kiln, high temperature pyrolysis
The hot method furnace of calcium carbide of stove, oxygen, oxygen coal gun and natural gas-oxygen lance, wherein,
The Lime kiln includes agstone feeding mouth, lime feed opening, Lime kiln smoke inlet, and the agstone enters
Material mouth is arranged on the top of the Lime kiln, and the lime feed opening and Lime kiln smoke inlet are arranged on the Lime kiln
Lower part；The Lime kiln baffle of adjustable inclination is equipped with the burner hearth of the Lime kiln, the Lime kiln baffle is arranged on institute
State under agstone feeding mouth, on the lime feed opening and the Lime kiln smoke inlet；The Lime kiln gear
The inner wall of plate and the Lime kiln leaves gap, and aperture is disposed with the Lime kiln baffle；The Lime kiln baffle
By the rotating shaft support through the Lime kiln furnace wall on the Lime kiln；
The high temperature pyrolysis stove includes coal dust feeding mouth, carbon dust feed opening, high temperature pyrolysis stove smoke inlet and pyrolysis gas outlet, institute
State coal dust feeding mouth and the pyrolysis gas outlet is arranged on the top of the high temperature pyrolysis stove, the carbon dust feed opening and high temperature pyrolysis
Kiln gas entrance is arranged on the lower part of the high temperature pyrolysis stove；The high temperature of adjustable inclination is equipped with the burner hearth of the high temperature pyrolysis stove
Pyrolysis oven baffle, the high temperature pyrolysis stove baffle is arranged under the coal dust feeding mouth and pyrolysis gas outlet, the carbon dust blanking
On mouth and the high temperature pyrolysis stove smoke inlet；Between the high temperature pyrolysis stove baffle and the inner wall of the high temperature pyrolysis stove leave
Gap, is disposed with aperture on the high temperature pyrolysis stove baffle；The high temperature pyrolysis stove baffle is by through the high temperature pyrolysis stove furnace wall
Rotating shaft support in the high temperature pyrolysis stove；The hot method furnace of calcium carbide of oxygen includes lime feeding mouth, carbon dust feeding mouth, flue gas and goes out
Mouthful and discharge port, the lime feeding mouth connect the lime feed opening of the Lime kiln, described in the carbon dust feeding mouth connection
The carbon dust feed opening of high temperature pyrolysis stove, the exhanst gas outlet connect the Lime kiln smoke inlet and the high temperature pyrolysis stove cigarette
Gas entrance；
The lance head of the oxygen coal gun is arranged in the hot method furnace of calcium carbide of the oxygen, stove of the oxygen coal gun from the hot method furnace of calcium carbide of the oxygen
Top is stretched into the hot method furnace of calcium carbide of the oxygen；
The lance head of the natural gas-oxygen lance is arranged in the hot method furnace of calcium carbide of the oxygen, and the natural gas-oxygen lance is from institute
The furnace roof for stating the hot method furnace of calcium carbide of oxygen is stretched into the hot method furnace of calcium carbide of the oxygen；The natural gas line of the natural gas-oxygen lance leads to
The pyrolysis gas outlet that device is overpressurized with the high temperature pyrolysis stove is connected.
2. system according to claim 1, it is characterised in that be equipped with successively from top to bottom in the burner hearth of the Lime kiln
Multiple Lime kiln baffles with the inclination angle, the relatively described Lime kiln in inclination angle of the adjacent Lime kiln baffle erect
Straight center line is arranged symmetrically；It is equipped with multiple high temperature with the inclination angle in the burner hearth of the high temperature pyrolysis stove successively from top to bottom
Pyrolysis oven baffle, the symmetrical cloth of vertical centerline of the relatively described high temperature pyrolysis stove in inclination angle of the adjacent high temperature pyrolysis stove baffle
Put.
3. system according to claim 1, it is characterised in that the Lime kiln baffle and the high temperature pyrolysis stove baffle
30 ° -60 ° are adjustable as with the angle of horizontal plane；Aperture on the Lime kiln baffle and the high temperature pyrolysis stove baffle
Diameter is 10mm-30mm.
4. system according to claim 1, it is characterised in that the Lime kiln and the high temperature pyrolysis stove are square
Stove, the Lime kiln baffle and the high temperature pyrolysis stove baffle are respective institute along the length on the incline direction at respective inclination angle
At 0.5-0.95 times of the length of side of stove, the vertical direction of the rotation axis of the adjacent Lime kiln baffle in the Lime kiln
Distance is 0.2-1.5 times of the Lime kiln length of side；The rotation axis of the adjacent high temperature pyrolysis stove baffle is in the high warm
The distance for solving the vertical direction of stove is 0.2-1.5 times of the high temperature pyrolysis stove length of side.
5. system according to claim 1, it is characterised in that the Lime kiln baffle and the high temperature pyrolysis stove baffle
Material be heat-resistance stainless steel；The junction of the Lime kiln baffle and the high temperature pyrolysis stove baffle and each place stove
It is equipped with sealing device；Rotation driving bar is equipped with the shaft of the shaft of the Lime kiln and the high temperature pyrolysis stove.
6. system according to claim 1, it is characterised in that the exhanst gas outlet of the hot method furnace of calcium carbide of oxygen passes through high temperature cigarette
Feed channel is respectively communicated with the Lime kiln gas inlet and the high temperature pyrolysis stove gas inlet, the high-temperature flue gas pipeline
It is internally provided with water-cooled flue.
7. system according to claim 1, it is characterised in that the discharge port of the hot method furnace of calcium carbide of oxygen is equipped with radar material position
Meter or capacitance material level meter；The agstone feeding mouth of the Lime kiln is connected with agstone speed governing batcher, the high warm
The coal dust feeding mouth of solution stove is connected with coal dust speed governing batcher.
8. system according to claim 1, it is characterised in that the structure of the oxygen coal gun is telescopic water cooled lance, institute
The material for stating the lance head of oxygen coal gun is copper, and the sleeve internal layer of the oxygen coal gun is breeze blowing layer, and intermediate layer is blowing oxygen
Layer, outermost is cooling cycle water layer；The oxygen inlet of the blowing oxygen layer is connected with oxygen channel, the breeze blowing layer
Coal dust import be connected with pulverized coal channel.
9. a kind of method using any one of claim 1 to the 8 system production calcium carbide, the method includes the steps：
Agstone is sent into the Lime kiln to be reacted, obtains quick lime；
Coal dust is sent into the high temperature pyrolysis stove to be pyrolyzed, obtains carbon dust；
The quick lime and carbon dust are sent into the hot method furnace of calcium carbide of oxygen, the oxygen coal gun is blown to the hot method furnace of calcium carbide of the oxygen
Coal dust and oxygen, make the natural gas-oxygen lance to the hot method furnace of calcium carbide Natural GasInjecting of the oxygen and oxygen, the hot method generation of oxygen
Calcium carbide；
The high-temperature flue gas that the hot method furnace of calcium carbide of the oxygen produces is each led into the Lime kiln and the high temperature pyrolysis stove；
The pyrolysis gas produced in the high temperature pyrolysis stove is passed through to the natural gas line of the natural gas-oxygen lance after pressurized
It is interior.
10. according to the method described in claim 9, it is characterized in that, the method further includes step：
By speed governing batcher governing speed to control the feeding amount of the agstone and coal dust；
Combustible gas or oil are extracted from the pyrolysis smoke of the high temperature pyrolysis stove；By adjust the Lime kiln baffle with it is described
The inclination angle of high temperature pyrolysis stove baffle is to control the gliding speed of agstone and coal dust；
By adjusting residence time of the agstone in the Lime kiln to control the reaction interval of the agstone
Degree；
Flue gas is controlled to enter in the Lime kiln and the high temperature pyrolysis stove by controlling the water in high-temperature flue gas pipeline
Temperature；
By the discharge port of the hot method furnace of calcium carbide of the oxygen detect material position after further control the agstone and coal dust to
Speed is expected to adjust the feeding amount of agstone and coal dust, to prevent the lime feed opening from being blocked with carbon dust feed opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610638726.7A CN106082224B (en) | 2016-08-05 | 2016-08-05 | A kind of system and method for double shaft furnace production calcium carbides that pyrolysis gas recycles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610638726.7A CN106082224B (en) | 2016-08-05 | 2016-08-05 | A kind of system and method for double shaft furnace production calcium carbides that pyrolysis gas recycles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106082224A CN106082224A (en) | 2016-11-09 |
| CN106082224B true CN106082224B (en) | 2018-04-20 |
Family
ID=57454526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610638726.7A Active CN106082224B (en) | 2016-08-05 | 2016-08-05 | A kind of system and method for double shaft furnace production calcium carbides that pyrolysis gas recycles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106082224B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109097517B (en) * | 2018-09-20 | 2019-08-23 | 北京科技大学 | A kind of more gas-based shaft kilns also original system and its restoring method |
| CN114380291B (en) * | 2021-12-30 | 2023-08-22 | 新疆大学 | Calcium carbide furnace for preparing calcium carbide by raw coal and limestone raw ore through one-step method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB737857A (en) * | 1952-12-30 | 1955-10-05 | Stamicarbon | Improvements relating to the preparation of calcium carbide |
| CN102225765B (en) * | 2011-05-10 | 2014-01-01 | 云南邦特新材料有限公司 | Mixed pellets composed of fine coal powder and limestone powder for producing calcium carbide |
| CN104192846A (en) * | 2014-08-15 | 2014-12-10 | 浙江天翔环保设备有限公司 | Calcium carbide furnace capable of recycling tail gas |
-
2016
- 2016-08-05 CN CN201610638726.7A patent/CN106082224B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB737857A (en) * | 1952-12-30 | 1955-10-05 | Stamicarbon | Improvements relating to the preparation of calcium carbide |
| CN102225765B (en) * | 2011-05-10 | 2014-01-01 | 云南邦特新材料有限公司 | Mixed pellets composed of fine coal powder and limestone powder for producing calcium carbide |
| CN104192846A (en) * | 2014-08-15 | 2014-12-10 | 浙江天翔环保设备有限公司 | Calcium carbide furnace capable of recycling tail gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106082224A (en) | 2016-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106082222B (en) | A kind of system and method for double shaft furnace production calcium carbides of high temperature pressure ball | |
| CN102777894A (en) | Reverse powder injection combustor | |
| CN106082224B (en) | A kind of system and method for double shaft furnace production calcium carbides that pyrolysis gas recycles | |
| CN106276901A (en) | A kind of oxygen full-boiled process produces carbide and the method and system of CO gas | |
| CN102634654A (en) | Method for producing metallized pellets by using composite carbon-containing pellets and chain belt type roasting machine | |
| CN108220514A (en) | A kind of hydrogen-rich oxygen blast furnace iron-making method | |
| CN203284438U (en) | Magnetizing roasting reducing atmosphere preparation device and iron mine flash magnetizing roasting system | |
| CN109477152A (en) | Step roasts melting reduction iron smelting method and equipment | |
| CN106241808B (en) | The production system and method for the calcium carbide that a kind of pyrolysis gas recycles | |
| CN206142838U (en) | Production system of carbide with two shaft furnaces | |
| CN206203894U (en) | A kind of production system of the calcium carbide that pyrolysis gas are recycled | |
| CN206142839U (en) | System for two shaft furnace production carbide of high warm -pressing ball | |
| CN101314715B (en) | Double-layer charing chamber type coke oven with wedged bottom | |
| CN106148627A (en) | A kind of molten point of stove reduction system and method for natural gas oxygen heating | |
| CN106086283A (en) | A kind of molten point of stove reduction system and method for schreyerite | |
| CN206142837U (en) | Production system of carbide with adjustable pyrolysis oven | |
| CN206142840U (en) | System for high warm -pressing ball production carbide | |
| CN206142841U (en) | System for two shaft furnace production carbide of pyrolysis gas cyclic utilization | |
| CN103148477A (en) | Powder-screwing-in type pulverized coal combustion machine | |
| CN106082225B (en) | A kind of production system and method for the calcium carbide for being provided with double shaft furnaces | |
| CN106082223B (en) | A kind of production system and method for the calcium carbide provided with adjustable pyrolysis oven | |
| CN106082226B (en) | A kind of system and method for high temperature pressure ball production calcium carbide | |
| CN2666909Y (en) | Energy-saving environment protection active lime burning-in shaft kiln | |
| CN104745803A (en) | Shaft furnace and application of shaft furnace in coal-based magnetization roasting process for refractory low-grade iron ore | |
| CN106086278A (en) | A kind of molten point of stove reduction system and method for injecting oxygen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Applicant after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Applicant before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190121 Granted publication date: 20180420 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220921 Granted publication date: 20180420 |
|
| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20220921 Granted publication date: 20180420 |
|
| PP01 | Preservation of patent right |